12457798 has 16 divisors (see below), whose sum is σ = 19015200. Its totient is φ = 6120576.

The previous prime is 12457777. The next prime is 12457799. The reversal of 12457798 is 89775421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12457799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44836 + ... + 45112.

It is an arithmetic number, because the mean of its divisors is an integer number (1188450).

Almost surely, 2^12457798 is an apocalyptic number.

12457798 is a deficient number, since it is larger than the sum of its proper divisors (6557402).

12457798 is a wasteful number, since it uses less digits than its factorization.

12457798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591.

The product of its digits is 141120, while the sum is 43.

The square root of 12457798 is about 3529.5605958816. The cubic root of 12457798 is about 231.8179680913.

The spelling of 12457798 in words is "twelve million, four hundred fifty-seven thousand, seven hundred ninety-eight".